This U.S. industry comprises establishments primarily engaged in manufacturing industrial valves and valves for water works and municipal water systems.

Cross-References. Establishments primarily engaged in--

• Manufacturing fluid power valves--are classified in U.S. Industry 332912, Fluid Power Valve and Hose Fitting Manufacturing; and
• Manufacturing plumbing and heating valves--are classified in U.S. Industry 332919, Other Metal Valve and Pipe Fitting Manufacturing.